The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 27, 2025
Filed:
May. 18, 2022
Electric Power Research Institute. China Southern Power Grid, Guangdong, CN;
Qinlei Chen, Guangdong, CN;
Shuyong Li, Guangdong, CN;
Qi Guo, Guangdong, CN;
Libin Huang, Guangdong, CN;
Xuehua Lin, Guangdong, CN;
Zhijiang Liu, Guangdong, CN;
Deyang Chen, Guangdong, CN;
Chao Luo, Guangdong, CN;
Guanming Zeng, Guangdong, CN;
Mengjun Liao, Guangdong, CN;
Lijun Deng, Guangdong, CN;
Liu Cui, Guangdong, CN;
Zhida Huang, Guangdong, CN;
Haiping Guo, Guangdong, CN;
Tianyu Guo, Guangdong, CN;
ELECTRIC POWER RESEARCH INSTITUTE. CHINA SOUTHERN POWER GRID, Guangdong, CN;
Abstract
A method for detecting abnormal direct current voltage measurement in a modular multilevel converter high voltage direct current transmission system is provided. In the method, a valve group voltage at a detection pole is obtained, voltages at voltage measurement points at the detection pole are collected, and comparison and determination are performed based on the actual arrangement of the voltage measurement points, and then whether an abnormal measurement occurs at each of the voltage measurement points is determined.